These are untouched carbon blanks as received from Proof.
1. (SOLD) .243, 7.5 twist 4 groove , 16.5” finish length.
2. (SOLD) .257, 7 twist/5 groove, 22” finish length. This is not a cataloged barrel, and was part of a limited run contracted by BlackJack bullets. This will stabilize the heavy .257 bullets (133/135 berger, 134 Hornady). This barrel cannot be ordered from Proof today.
(Not available) If anyone wants to do a 25 Creedmoor, I have a blackjack floating pilot JGS reamer available. Two chambers on it, $150 shipped.
3. (Sold) 308, 9.4 twist 5 groove, 24” finish length. Another off catalog blank. These only come in 8,9 and 10 twist currently.
1. (SOLD) .243, 7.5 twist 4 groove , 16.5” finish length.
2. (SOLD) .257, 7 twist/5 groove, 22” finish length. This is not a cataloged barrel, and was part of a limited run contracted by BlackJack bullets. This will stabilize the heavy .257 bullets (133/135 berger, 134 Hornady). This barrel cannot be ordered from Proof today.
(Not available) If anyone wants to do a 25 Creedmoor, I have a blackjack floating pilot JGS reamer available. Two chambers on it, $150 shipped.
3. (Sold) 308, 9.4 twist 5 groove, 24” finish length. Another off catalog blank. These only come in 8,9 and 10 twist currently.
Last edited:
